1. people or things that set something free or allow it to escape
2. devices or mechanisms that cause something to be discharged or activated
Usage: technical
3. substances that cause the discharge of other chemicals or hormones
Usage: biology; medicine

Examples

• The wildlife releasers carefully returned the rehabilitated birds to their natural habitat.
• Emergency releasers on the aircraft doors allow for quick evacuation.
• The protesters demanded the immediate releasers of all political prisoners.
• Hormone releasers in the brain control various bodily functions.
• The safety releasers prevented the machinery from operating dangerously.
• Chemical releasers trigger specific responses in the nervous system.